SPD4121 HVAC Technology for Plumbing Engineers

SPD4121 HVAC Technology for Plumbing Engineers

Load estimation

1. Basic Concepts

2. Outdoor Design Conditions

3. Indoor Design Conditions

4. Cooling Load Components

5. Cooling Load Principles

5. Heating Load

6. Software Applications

[Powerpoint file in PDF format]

Further Reading:

Heat Transfer [BSE notes -- Science] http://www.arca53.dsl.pipex.com/index_files/science1.htm

Overall Heat Transfer http://www.arca53.dsl.pipex.com/index_files/oahtran1.htm
Thermal Transmission http://www.arca53.dsl.pipex.com/index_files/tt1.htm

Heat Gains [BSE notes] http://www.arca53.dsl.pipex.com/index_files/hgain1.htm
Cooling Load Check Figures:

Cooling Load Check Figures http://www.iklimnet.com/expert_hvac/cooling_load_check_figures.html
Cooling Load Check Figures and CLTD Equations [PDF]
Cooling Load Check Figures (based on the AIRAH Handbook 3rd edition) [PDF]

Cooling load calculation methods -- examples:

Heating & Cooling Load Calculation Form - CLTD/CLF/SCL Method (IP units) [Excel][Description: http://www.geokiss.com/software/TideLoadInstr.pdf]
Cooling load calculation of a single family house using CLTD/CLF method [PDF]
Air conditioning cooling load calculations - Example from ASHRAE 2013 Handbook - Fundamentals Chapter 18, Single Room [PDF]
RTS cooling load calculations - input and results [JPG]
Cooling load components [JPG]

RTS example XLS (IP units) http://www.hvac.okstate.edu/Software/RTS_example_Montreal_ASHRAE_Chapter_6Oct2003.xls

NPTEL E-learning course -- Refrigeration and Air Conditioning http://nptel.ac.in/courses/112105129/

Lesson 32 Cooling And Heating Load Calculations- Estimation Of Solar Radiation http://nptel.ac.in/courses/112105129/32
Lesson 33 Cooling And Heating Load Calculations -Solar Radiation Through Fenestration - Ventilation And Infiltration http://nptel.ac.in/courses/112105129/33
Lesson 34 Cooling And Heating Load Calculations -Heat Transfer Through Buildings - Fabric Heat Gain/Loss http://nptel.ac.in/courses/112105129/34
Lesson 35 Cooling And Heating Load Calculations -Estimation Of Required Cooling/Heating Capacity http://nptel.ac.in/courses/112105129/35

References:

ASHRAE, 2013. ASHRAE Handbook Fundamentals 2013, Chps. 14-19, American Society of Heating, Refrigerating and Air-Conditioning Engineers Inc., Atlanta, GA. [ASHRAE Catalog: 697 A82 T4]

Chapter 14. Climatic Design Information
Chapter 15. Fenestration
Chapter 16. Ventilation and Infiltration
Chapter 17. Residential Cooling and Heating Load Calculations
Chapter 18. Nonresidential Cooling and Heating Load Calculations
Chapter 19. Energy Estimating and Modeling Methods

ASHRAE, 2009. ASHRAE Handbook Fundamentals 2009, Chps. 14-19, American Society of Heating, Refrigerating and Air-Conditioning Engineers Inc., Atlanta, GA. [ebook via Knovel]
Kavanaugh, S. P., 2006. HVAC Simplified, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Atlanta, GA. [697 K2]

Heating & Cooling Load Calculation Form - CLTD/CLF/SCL Method (IP units) [Excel]

Pedersen, C. O., et al., 1998. Cooling and Heating Load Calculation Principles, American Society of Heating, Refrigerating and Air-Conditioning Engineers, Atlanta, GA. [697 C77]
Spitler, J. D., 2010. Load Calculation Applications Manual, American Society of Heating, Refrigerating, and Air-Conditioning Engineers, Atlanta, GA. [697 S761 l79]
Wang, S. K., Lavan, Z. and Norton, P., 2000. Air Conditioning and Refrigeration Engineering, Chp. 6, CRC Press, Boca Raton. [697.93 W246 a]

Web Links:

Examples of load calculation software:

Carmel Loadsoft 6.0 [AV 697.00028553 L79 CDROM and Manual]
Carmel Residential 5.0 [AV 697.00028553 R43 CDROM and Manual]
Elite Software: CHVAC and RHVAC [AV 697 E43] http://www.elitesoft.com/
HVAC Load Explorer http://hvac_2.okstate.edu/books/edition_6/hvac_load_6.html

User's Guide http://www.philadelphia.edu.jo/academics/sammourah/uploads/HvacLoadExplorer.pdf

Examples of load/energy calculation software:

TRACE 700 http://www.trane.com/TRACE700‎

TRACE 700 tutorial - Introduction to Trane TRACE 700 (11:09) http://www.youtube.com/watch?v=ije73V5EYdE
TRACE 700 Tutorial - learn TRACE in under 10 minutes (8:33) http://www.youtube.com/watch?v=OWpILURIk60

Carrier E20-II http://www.carrier-commercial.com

| Created: Jul 2016 | Update: 29 Jul 2016 |